.center_margin {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  margin: auto;
}
body {
  margin: 0;
  padding: 0;
  background-color: #f7f1e3;
}
.clock {
  width: 400px;
  height: 400px;
  background-color: #f1f2f6;
  border: 10px solid #34495e;
  border-radius: 50%;
  box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.4), 0 0 10px 0 rgba(0, 0, 0, 0.3) inset;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 100;
}
.clock .pointer {
  width: 100%;
  height: 100%;
  background: url("../img/clock_pointer.png") no-repeat center center;
  background-size: 90%;
  display: none;
}
.clock .pointer .center {
  width: 25px;
  height: 25px;
  border: 3px solid #34495e;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  box-sizing: border-box;
  background-color: #f1f2f6;
  z-index: 10;
}
.clock .pointer .hour {
  width: 400px;
  height: 400px;
  border-radius: 50%;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  margin: auto;
}
.clock .pointer .hour div {
  width: 7px;
  height: 30%;
  border-radius: 7px;
  background-color: #eb3b5a;
  position: absolute;
  left: 50%;
  top: 80px;
  transform: translate(-50%, 0);
  filter: drop-shadow(0 0 1px #000);
}
.clock .pointer .minute {
  width: 400px;
  height: 400px;
  border-radius: 50%;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  margin: auto;
}
.clock .pointer .minute div {
  width: 4px;
  height: 40%;
  border-radius: 7px;
  background-color: #3867d6;
  position: absolute;
  left: 50%;
  top: 40px;
  transform: translate(-50%, 0);
  filter: drop-shadow(0 0 1px #000);
}
.clock .pointer .second {
  width: 400px;
  height: 400px;
  border-radius: 50%;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  margin: auto;
}
.clock .pointer .second div {
  width: 2px;
  height: 45%;
  border-radius: 7px;
  background-color: #a55eea;
  position: absolute;
  left: 50%;
  top: 20px;
  transform: translate(-50%, 0);
  filter: drop-shadow(0 0 1px #000);
}
